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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Rondônia. |
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Data corrente: |
22/11/2018 |
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Data da última atualização: |
11/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATOS, G. S. B. de; FERNANDES, A. R.; WADT, P. G. S.; FRANZINI, V. I.; SOUZA, E. M. de C.; RAMOS, H. M. N. |
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Afiliação: |
Gilson Sergio Bastos de Matos, UFRA; Antonio Rodrigues Fernandes, UFRA; PAULO GUILHERME SALVADOR WADT, CPAF-RO; VINICIUS IDE FRANZINI, CPATU; Elmecelli Moraes de Castro Souza, UFRA; Helen Monique Nascimento Ramos, ICRAF. |
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Título: |
Dris calculation methods for evaluating the nutritional status of oil palm in the Eastern Amazon. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v. 41, n. 10, p. 1240-1252, 2018. |
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DOI: |
10.1080/01904167.2018.1434199 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to evaluate six Diagnosis and Recommendation Integrated System (DRIS) calculation methods, including two ways to choose the nutrient ratio [F (Letzsch) or R (Nick) values] combined with three functions (Beaufils, Jones, or Elwali and Gascho), and to generate nutritional diagnoses for oil palm. A total of 144 foliar samples in 33 plots in the Eastern Amazon, Brazil, were used. Except for potassium (K) in all calculation methods, the DRIS indices showed no correlation with soil nutrients. Regardless of the formula, the nutritional balance index correlated with the productivity (significant r values) and similar diagnostics were obtained. These diagnoses were reliable according to the chi-square test (χ2), and most observed frequencies presented χ2 calculated less than χ2 tabulated. The average frequencies of samples with nutrient deficiency were 51%, 42%, 37%, 35%, 32%, 30%, 30%, 25%, 20%, 12%, and 12% for samples with nitrogen (N), boron (B), manganese (Mn), sulfur (S), K, copper (Cu), iron (Fe), zinc (Zn), calcium (Ca), phosphorus (P), and magnesium (Mg), respectively. All tested DRIS methods may be used, and their diagnoses indicate the most common nutritional deficiencies in oil palm. |
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Thesagro: |
Dendê; Elaeis Guineensis; Elaeis Oleifera; Fertilidade do Solo; Nutriente. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02012naa a2200253 a 4500
001 2106768
005 2019-11-11
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1080/01904167.2018.1434199$2DOI
100 1 $aMATOS, G. S. B. de
245 $aDris calculation methods for evaluating the nutritional status of oil palm in the Eastern Amazon.$h[electronic resource]
260 $c2018
520 $aThis study aimed to evaluate six Diagnosis and Recommendation Integrated System (DRIS) calculation methods, including two ways to choose the nutrient ratio [F (Letzsch) or R (Nick) values] combined with three functions (Beaufils, Jones, or Elwali and Gascho), and to generate nutritional diagnoses for oil palm. A total of 144 foliar samples in 33 plots in the Eastern Amazon, Brazil, were used. Except for potassium (K) in all calculation methods, the DRIS indices showed no correlation with soil nutrients. Regardless of the formula, the nutritional balance index correlated with the productivity (significant r values) and similar diagnostics were obtained. These diagnoses were reliable according to the chi-square test (χ2), and most observed frequencies presented χ2 calculated less than χ2 tabulated. The average frequencies of samples with nutrient deficiency were 51%, 42%, 37%, 35%, 32%, 30%, 30%, 25%, 20%, 12%, and 12% for samples with nitrogen (N), boron (B), manganese (Mn), sulfur (S), K, copper (Cu), iron (Fe), zinc (Zn), calcium (Ca), phosphorus (P), and magnesium (Mg), respectively. All tested DRIS methods may be used, and their diagnoses indicate the most common nutritional deficiencies in oil palm.
650 $aDendê
650 $aElaeis Guineensis
650 $aElaeis Oleifera
650 $aFertilidade do Solo
650 $aNutriente
700 1 $aFERNANDES, A. R.
700 1 $aWADT, P. G. S.
700 1 $aFRANZINI, V. I.
700 1 $aSOUZA, E. M. de C.
700 1 $aRAMOS, H. M. N.
773 $tJournal of Plant Nutrition$gv. 41, n. 10, p. 1240-1252, 2018.
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Embrapa Rondônia (CPAF-RO) |
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